I've been meaning to get into road cycling for a while now and, now that I have my own road bicycle, I'm worried about getting flats. I haven't ridden it yet as I've had no time for that. But I've seen these set of tires online that everyone seems to praise due to their resistance to sharp objects such as thorns and broken glass. How well do they work on the roads of South Africa? I ride a lot in the Waterkloof, Pretoria area, for reference.